Hi, I am in the early stages of replacing the factory system in my 2007 Ford Explorer Sport Trac. I plan installing 1 Polk Audio db804dvc, 4 Polk Audio db571 in the doors. I only plan on powering the sub. I figure with the head unit that I will get, not that I have chosen one, will be enough for the db571's.
My questions are. How should I wire the Sub? What size amp? What brands should I avoid? I am not looking to spend a lot.